A committee of 3 people is to be selected randomly from one of two classes.class a has 5 men and 5 women. Class b has 4 men and 6 women. A fair coin is tossed to determine which class is chosen to select the committee from. Given that the committee selected is all male,find the probability that class a was chosen
a. 0.71 b. 0.60 c. 0.91 d. 0.87 e. 0.50